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Journal article

Human newborn bacille Calmette–Guérin vaccination and risk of tuberculosis disease: a case-control study

Abstract:

Background

An incomplete understanding of the immunological mechanisms underlying protection against tuberculosis (TB) hampers the development of new vaccines against TB. We aimed to define host correlates of prospective risk of TB disease following bacille Calmette–Guérin (BCG) vaccination.

Methods

In this study, 5,726 infants vaccinated with BCG at birth were enrolled. Host responses in blood collected at 10 weeks of age were compared between infants who developed pulmonary TB disease during 2 years of follow-up (cases) and those who remained healthy (controls).

Results

Comprehensive gene expression and cellular and soluble marker analysis failed to identify a correlate of risk. We showed that distinct host responses after BCG vaccination may be the reason: two major clusters of gene expression, with different myeloid and lymphoid activation and inflammatory patterns, were evident when all infants were examined together. Cases from each cluster demonstrated distinct patterns of gene expression, which were confirmed by cellular assays.

Conclusions

Distinct patterns of host responses to Mycobacterium bovis BCG suggest that novel TB vaccines may also elicit distinct patterns of host responses. This diversity should be considered in future TB vaccine development.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1186/s12916-016-0617-3

Authors


Contributors

Institution:
University of Oxford
Division:
MSD
Department:
NDM
Sub department:
Jenner Institute
Role:
Contributor


More from this funder
Grant:
R01-AI065653
R01 AI065653
More from this funder
Grant:
NF-SI-0509-10233
NF-SI-0514-10158
More from this funder
Grant:
NF-SI-0514-10158
NF-SI-0509-10233


Publisher:
BioMed Central
Journal:
BMC Medicine More from this journal
Volume:
14
Issue:
1
Pages:
76
Publication date:
2016-05-16
Acceptance date:
2016-04-23
DOI:
EISSN:
1741-7015
Pmid:
27183822


Language:
English
Keywords:
Pubs id:
pubs:708378
UUID:
uuid:ca024b02-1d1b-4e0b-a9d7-f935669fe3a7
Local pid:
pubs:708378
Source identifiers:
708378
Deposit date:
2019-07-03

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